Tool to compress packing rings



May 23, 1946.

W. A. BOWMAN ETAL TOOL To COMPRES$ PACKING RINGS Filed se i. 26, 1944 2 Sheets$h eet 2 ////IIIIIIIII4%&(0/l/M Wflfiowman ffL Bairer Patented May 28, 1946 UNITED STATE TOOL 'ro COMPRESS PACKING RINGS William A. Bowman and Henry L. Baker, Evansville, Ind.

Application September 26, 1944, Serial No. 555,880

1 Claim.

which is to tap around and around with some kind of caulking tool, which process often results in damage to rings, tubes and cables.

A further object of our invention is to provide a tool of'the kind described, whereby it is possible to reach places not readily accessible and where the use of a caulking tool and hammer is impossible.

With the foregoing and other objects in viewthat will appear as the nature of our invention is better understood, the same consists in the novel features of construction, combination and arrangement of parts illustrated in the accompanying drawings and more particularly pointed. out

. in the appended claims.

In the accompanying drawings, which are for illustrative purposes only and are therefore not drawn to scale:

Figure 1 is a, side elevation, partly in section, illustrating the application of our invention.

Figure 2 is a plan View.

Figure 3 is a bottom plan view of the upper handle member.

Figure 4 is a plan viewof the lower handle member.

Figure 5 is an enlarged vertical transverse section, taken on line 5-5 of Figure 2, looking in the direction indicated by the arrows.

Figure 6 is a similar view, taken on line 6-6 of Figure 1, looking in the direction indicated by the arrows, and with the parts shown on an enlarged scale.

Figure 7 is an enlarged vertical transverse section, taken on line 1-1 of Figure 1, looking in the direction indicated by the arrows, and Figure 8 is an enlarged detail plan view of the split bushing or ram, with the parts shown in juxtaposition.

Referring to the drawings for a more particular description of our invention, and in which drawings like parts are designated by like reference characters throughout the several views,

our tool essentially comprises the upper and lower handle members I and 2',formed at their inner ends with the forked or bifurcated heads 3 and 4, respectively, the purpose of which will presently appear.

In carrying out our invention, a split bushing or ram 5 is employed to compress the packing rings a in the head I) of the terminal tube 0. The bushing or ram 5 is composed of two corresponding semicircular sections 6 and I, held rigidly together by the dowel pins 8, carried by the inner edge of section 6 and fitting in corresponding recesses 9 formed in the inner edge of section I. The sections 6 and I of the split bushing or ram are also provided at their outer edges with the outwardly extending pressure pins III and II adapted to engage or seat in corresponding transverse recesses or grooves l2 and i3, formed in the bottom face of the members l4 and I5 of the forked head 3 of the upper handle member I.

'In practice, the split bushing or ram 5 may be placed on the cable at from any position, and

pressure is applied to the packing rings a in the head 12 of the terminal tube 0 by means of the lower end or neck It of the bushing or ram, as illustrated in Figure 5 of the drawings. The required pressure is produced by means of the hand lever I1 and cam l8, eccentrically pivoted by means of the cross pin or bolt 19, to the lower ends of the perpendicular metal straps 20, welded or otherwise secured at their upper ends to the side edges of the upper handle member I. It will be noted that the terminal tube 0 tapers at the base of the head I), as at e, and it is at this place that the actual water tight compression takes place. The outer wall of the tapered portion e of the terminal tube 0 rests on and is supported by the central recessed portion g of the lower handle member 2.

The upper and lower handle members I and 2 are formed on their inner faces with the longitudinal re-inforcing ribs 2| and 22, respectively, the purpose of which will be apparent. To permit relative pivoting of the handle members I and 2, the upper handle member I is provided at its outer end with a depending arm 23, whose lower end is pivotally connected to the corresponding end of the lower handle member 2, by the cross pin 24.

From the foregoing description taken in connection with the drawings, it is thought that the construction, operation and advantages of our invention will be readily understood, without requiring a more extended explanation.

Various changes in the form, proportions and minor details of construction may be resorted to without departing from the principles or sacrificing any of the advantages of our invention, as defined in the appended claim.

Having described our invention, what we claim as new and desire to secure by Letters Patent is:

A tool of the character specified, comprising a pair of handle members, formed at one end with bifurcated heads, and pivotally connected at their opposite ends, the head of the lower handle member formed with a central recessed portion adapted to support the head of a terminal tube, a split ram comprising a lower neck portion adapted to extend into the head of the terminal tube to compress the packing rings around the cable and an upper enlargedportion formed with outwardly extending pressure pins adapted to be engaged by the forked head of the upper handle member, a cam eccentrically pivoted below and working against the bottom face of the lower handle member and a longitudinally disposed handle connected to said cam, said cam and handle adapted to produce the necessary pressure to accomplish the compressing operation.

WILLIAM A. BOWMAN. HENRY L. BAKER. 

